Fourth Grade Science

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Fourth Grade Science

• Magnetism and Electricity

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At the end of this Slide show You will know

• What magnets are
• What magnetic force fields are
• The largest magnet we know

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Which of these objects are magnets?
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How do we know?
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A Magnet is

• An object that attracts certain materials

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To Attract
To Pull

• To Attract

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A Magnet is

• An object that repels certain materials

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To Repel
To Repel
To Push

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The Shape of a Magnetic Force Field is
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How do we know?
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The poles of a magnet are attracted to the poles
of the earth
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• North Pole of a magnet is the north-seeking
  pole
• South Pole of a magnet is the south-seeking pole

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Aurora

• An Aurora is a polar light show caused by
  particles or matter streaming from the sun,
  attracted by the earths magnetic field.

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So, what is the largest magnet we know?